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Finding the Fourth Proportional to 168,332.48, 252,522.72 and 78,331.84

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Solution

The fourth proportional to 168,332.48, 252,522.72 and 78,331.84 is: 117,508.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,332.48 : 252,522.72 = 78,331.84 : x
  2. Step 2: Convert to fraction form
    168,332.48/252,522.72 = 78,331.84/x
  3. Step 3: Cross multiply
    168,332.48x = 252,522.72 × 78,331.84
  4. Step 4: Simplify right side
    168,332.48x = 19,780,569,299.40
  5. Step 5: Solve for x
    x = 19,780,569,299.40/168,332.48
  6. Step 6: Final answer
    x = 117,508.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.